We have released LibreSSL 2.3.10, which will be arriving in the
LibreSSL directory of your local OpenBSD mirror soon. It includes the following
changes:
* Avoid a side-channel cache-timing attack that can leak the ECDSA
private keys when signing. This is due to BN_mod_inverse() being
used without the constant time flag being set.
This issue was reported by Cesar Pereida Garcia and Billy Brumley
(Tampere University of Technology). The fix was developed by Cesar
Pereida Garcia.
* iOS and MacOS compatibility updates from Simone Basso and Jacob
Berkman.
The LibreSSL project continues improvement of the codebase to reflect modern,
safe programming practices. We welcome feedback and improvements from the
broader community. Thanks to all of the contributors who helped make this
release possible.